Flat for carping-engines



2 SHBETSSHEET 1.

PATENTED FEB. 16, 1904.

C. MILLS. FLAT FOR GARDING ENGINES.

APPLIUATION FILED JAN. 12, 1901.

N0 MODEL.

WH'HEESES No. 752,242. .PATENTED FEB. 16, 190.4.

C. MILLS. FLAT FOR CARDING ENGINES. APPLIGATIOH PILBDJAN 12, 1901. no 11012111, 2 SHEETS-SHEET 2.

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UNITED STATES Patented February 16, 19Q4.

PATENT OrFicE.

CHARLES MILLS, OF NEWTON, MASSACHUSETTS, ASSIGNOR TO THE SACO & PETTEE MACHINE SHOPS, OF NEWTON, MASSACHUSETTS, A COR- PORATION OF MASSACHUSETTS.

FLAT FOR CARDlNG-ENGINES.

SPECIFICATION forming part of Letters Patent No. 752,242, dated February 16, 1904;.

Application filed January 12, 1901. Serial No. 43,023. (No model.)

T0 aZZ whom it may concern:

Be it known that I, CHARLES MILLS, a citizen of the United States, and a resident of Newton, in the county ofMiddleseX and State of Massachusetts, have invented a new and useful Improvement in Flats for carding-Engines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

Heretofore, so far as I am aware, flats for carding-engines have been made of cast-iron, and while they serve their purpose fairly well they are to an extent unsatisfactory in that they are relatively heavy, are liable to spring, and thus lose their shape, and which of course affects the shape of the card-clothing attached to it and the operation of the carding-machine.

My invention consists in making a flat which is lighter than the cast-iron flat and is as stiff or stiffer and which is not liable to spring out of shape and stay in a sprung condition. The flat is made of one or more pieces of suitable sheet metal, which is formed, preferably, into a structure which provides a flat surface for receiving the clothing andone or more hollow ribs for stifiening it. It also may be constructed so as to provide a means for stretchat its ends the guiding-surfaces, which support it upon the flexible bends of the engine and bear against the guides of the grinding mechanism.

I will now describe the invention in connection with the drawings, wherein Figure 1 is a view' in perspective of the parts of a two-piece metal fiat after they are formed, but before they are united together. Fig. 2 represents them as together and forming the fiat. Fig. 3 shows the flat and the card-clothing attached to it. Fig. 4 is an end view of the parts of a two-piece flat separated as in Fig. 1. Fig. 5 is an end view of the flat with the attached clothing as represented in Fig. 3. Figs. 6 to 12, inclusive, represent modified forms of my invention, to which reference will hereinafter be made.

The flat may be formed of one or more pieces or parts of flat or sheet metal of the form. ing the card-clothing attached to it, and it has necessary constituency. In Figs. 1, 2, and 3 I have represented it as made of two pieces of sheet metal, the piece A, forming the face of the flat, having the flat surface a for receiving and supporting the card-clothing B and also having its ends a fashioned to form the guiding-surfaces a a and shoulders (4*. The part C forms the back of the flat and acts to hold and stiffen the face or part A. It is made of flat metal, which is shaped to form a hollow longitudinal central rib c and the flat lateral extensions 0 c againstthe face of which the part A lies and to which it is attached. They are of a length to abut against the shoulders a of the part A, and its extreme ends 0 are shaped to hold the means by which the flat is secured or attached to its feeding chain or devices. I, have represented each end as shaped to a cylindrical form and adapted to receive and hold the butt of a plug or screw, which -may be the attaching devices or form a partof them. The parts A and C may be united together by riveting or in any other desired way. The card-clothing is united to the flat thus formed in any desired way, and in Figs. 3 and 5 I have shown for this purpose one form of binding-clip and in .Fig. 6 another In Fig. 7 I have shown the flat as made of one" piece of flat metal, the part A being integral with the part O along one edge and being folded from that edge against the other part and so that the free edges shall be in line with each other.

In Fig. 8 I have shown the flat as made of one piece, corresponding to the section C, and I have represented the clothing B as having a stretching and backing plate 6, which serves to stretch and hold the clothing and also by means of its extensions 6 to fasten it to the flat. Ido not herein claim, however, the clothing and stretching-plate.

In Fig. 9 I have shown a flat made of one piece of sheet metal and so constructed that it may also be used to stretch the card-clothing and hold it stretched. It is shaped to provide the hollow reinforcing-rib (Z, and lateral extensions d fold back upon this to form the folded sections 6Z2 upon the hollow rib, which ving the edges of the clothing to the flat by the clips d the clothing may be stretched by slightly separating the sides of the rib. This may be done by inserting a separating plug or stick d, of wood or metal, in the cavity of the rib between the sides of a width suflicient to slightly part the sides or in any other mechanical way. As the clothing is attached to the edges of the flat, and as these edges are caused to be somewhat separated by separating the sides of the rib, and as the clothingsupporting plate is consequently separable, it follows that the slight separation of the sides of the rib will operate to stretch the clothing and to hold it stretched.

In Fig. 10 I have shown a sheet-metal flat in two parts, similar to the flat of Fig. 1, with the exception that the part A is made wide enough to furnish the sections 6, which may be bent around the edges of the wings of the part C and upon the under surface thereof, and thereby not only fasten the part A to the part C, but also form an angular and stiffening reinforcement along each edge of the flat, which cooperates with the rib C in adding stiffness to it.

In Fig. 11 I have shown a fla't which is formed from one piece of sheet metal and which is like that represented in Fig. 9, with the addition of inward-extending stiffeningsections from the top forming parts d These inward extensions f may rest against the inner surface of the rib, and they serve to stiffen the structure of the rib because of their width and also because of the angles which they form in conjunction with parts 611 The flat so made may directly receive the clothing, as represented in Fig. 11, or it may have for receiving it an additional plate interposed, as represented in Fig. 12.

I have shown but few of the many forms in which my invention may be employed, and I would say that I do not confine myself to a sheet-metal flat made of one, two, or more pieces, the essential feature of this part of the invention being, broadly, a flat made of sheet metal as distinguished from a cast-metal flat.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States 1. A flat for a carding-engine made of sheet metal comprising a flat metal plate, a hollow sheet-metal rib to reinforce said plate and attached continuously throughout its edges to the edges of said flat plate, and a strip of cardclothing attached by its edges to said flat plate.

2. A flat for a carding-engine made of sheet metal comprising aflat metal plate for the sup- 5 port of the clothing, a hollow sheet-metal rib reinforcing said plate and having flat edges or extensions bearing against the under surface thereof, a stripof card-clothing imposed upon the flat plate and means for fastening the edges of the clothing and edges of the two plates together, which also serve to bind the edges of all.

3. A sheet-metal flat for a carding-engine comprising a flat sheetmetal plate which bears a strip of card-clothing, a sheet-metal reinforcement to said plate, means for fastening the clothing and plates together, the said flat also having end extensions integral with one of the plates and having offset shoulders at the ends to provide bearings for the flat upon the bends.

4:. A sheet-metal flat for carding-engines having its ends offset to form the bend-bearlngs.

5. A flat for carding-engines having a sheetmetal plate for supporting the card-clothing having offset integral extensions in the shape of shoulders, an independent reinforcing-section contained between said shoulders and attached to said plate, and a strip of card-clothing upon said plate and means for uniting the two sections of the flat together and the card-clothing to them.

6. A metal flat for carding-engines having a flat sheet-metal plate upon which the cardclothing is mounted and a reinforcement for said sheet-metal plate comprising a hollow rib a portion of which has angular relation to the plate and an additional reinforcement to said plate also bearing an angular relation thereto.

7. A sheet-metal fiat comprising a sheetmetal plate, card-clothing mounted thereon, and a. sheet-metal reinforcement comprising an additional plate upon which the first-named plate bears, and a reinforcement of both plates I integral with the last named' 8. A sheet-metal flat comprising a plate having a surface to support the card-clothing mounted upon it and integral ends which are shaped by pressure to form shoulders and bearings,'and a sheet-metal hollow reinforcement having flat portions to bear against the plate between the shoulders, the ends of said reinforcing-sections being shaped by pressure to provide means for holding the devices connecting the flat with its driving mechanism.

9. A sheet-metal flat comprising a flat plate upon which the card-clothing is mounted and having integral ends pressed to shape to form bend-bearings, and an independent reinforcement formed from a single piece of metal shaped to fit said first-named plate and fastened thereto and also shaped at its ends to provide means for holding the connections with the flat-moving mechanism.

CHAS. MILLS.

Witnesses:

S. A. Trioivn so v, EDWIN H. ALEXANDER. 

